Expansion-coil for refrigerating and ice-making plants.



R. WHITAKER. EXPANSION COIL FOR REPRIGBRATINGJAND IGB MAKING PLANTS.

' APPLICATION IILED JULY 1, 1907. v 943325? Patented Dec. 21, 1909.

, WITNESSES i I I lNVENTOR I I fizkizaidwa 3 ATT RNEY 3. WHITAKER. EXPANSION COIL FOR REFBIGEBATING AND ICE MAKING PLANTS.

' APPLICATION FILED JULY 1, 1907.

943 725, Patented Dec. 21, 15209 2 SHEETS-SHEET 2 WITNESSES:

' I? 355mm ATTORNEY PATENT 'illr l ltlhio RICHARD WHITAKER, NE? BRUNSWICK, NEW JERSEY, ASSIGNOR TO THE BRAINS- WICK REFBIGERATING GOMPANY. OF NEW BRUNSWICK, 1\TEW JERSEY, A COP) @OBATION OE NEW JERSEY.

EXPANSION-C9114 BOB REFRIGERATING AND ICE-MAKING PLANTS.

snares,

To all whom it may concern:

Be it known that l, RICHARD VVHITAKER,

a citizen of the United States, and a resident of New Brunswick, in the county of Middlesex and State of New Jersey, have invented certain new and us ful improvements in Ex fil'lSlOYlf-COllS for Refrigerating and Iceliing Plants, of which the following is a specification. 3 r

T he invention relates to improvements in expansion-coils for refrigerating and icemaking plants, and it consists in the novel features hereinafter described, and particularly pointed out in the claims.

The object of the invention is to simplify, render more etlicient and lessen the cost of the niannfacture of expansion-coils, and at the same time to secure the requisite length or pipe in the coils without the latter occu-- pying greater space than that required for expansion-coils as heretofore constructed.

it has heretofore been customary to marin tacture expansion-coils with separate lengths or pieces of one-inch pipe arranged on the same vertical plane and connected at their ends by steel heads to form a coil, the steel heads being necessary to complete the passage through the coil and to enable the lengths of pipe to be placed sulliciently close together to aiiord the requisite pipe-length, within the limited space permitted, for efficiently carrying out the purposes of the coil. It has been impossible to coil the one-inch pipe back and forth in one continuous piece with the immediate continuous horizontal members snn'iciently close together to secure in the completed coil the requisite pipe length within the limited spacepcrtnitted, it being well understood that the one-inch pipe had to be coiled on not less than five-inch centers and that this would not permit the coilto aii'ord the requisite pipe-length within desired limits. The steel heads connecting the lengths or pieces of pipe of coils as herelotore constructed have long been recognized as necessary and also as objectionable in that they are expensive result in the coil having many joints (where the ends of the pipes enter said heads) and increase the labor-cost oi manufacture due to the necesnity of properly connecting the ends of the pipes with the heads.

a accordance with my invention 1 dispense entirely with the necessity of making Specification of Letters iatent;

Patented Eco, 21,1903,

Application filed July 1, 1997'. Serial Ho. 883.15%.

coils from separate lengths of pipe connected at their ends by steel heads, and produce a coil having the requisite pipe-length and entirely devoid of joints, the coil being preferably formed from one continuous piece of pipe properly coiled on five-inch centers and affording the requisite pipe-length and the desired close relation of the parallel members of the coil with one another, whereby the coil of my invention is adapted to occupy about the same space as that required for the coils of the prior art.

The invention will be fully understood from the detailed description hereinafter presented, reference being had to the accompanying drawings, in which:

Figure 1 is a View showing the preferred method of inantffaeturing the coil of my invention, the pipe being coiled back and forth throughout its entire length on fiveinch centers and then doubled over at about its middle portion, as shown by dotted lines, to place the lower half of the entire initial coil against the upper half thereof and position the horizontal lengths of said lower half on lines intermediate the lengths of the upper half, whereby the lengths of theconr pleted coil become arranged in close relation to one another and afford within a limited space the requisite pipe-length; Fig. 2 is a central vertical longitudinal section, on the dotted line 2-2 of Fig. 3, of a brine-tank containing a completed expansion coil,constructed in accordance with and embodying my invention; Fig. 3 is a vertical transverse section of the same on the dotted line 3-3 of Fig. 2, and Fig. i is an enlarged view indicating the correct bending of an inch pipe in forming the coil of my invention.

In the drawings, referring to Figs. 2, 3 and at, 10 designates a customary form of brine-tank and 11 the coil of my invention therein, said coil being in one continuous piece of pipe and having its horizontal parallel members secured on the same vertical plane by means of vertical bars 12 applied to opposite sides oi. the end portions of the coil and connected together and to the coil by means of bolts 13 The lower ends of the bars 12 preferably restupon wooden blocks 14, which prevent said ends from injuring the bottom of the tank 10. The

coiled or curved ends oi the stretchesor lengths 01 the coil overlap one another in and the members 15., 1.6, of each pair ends are oppositely transas more clearly indicated in parallel lengths of the pa irs oecu 'iy the minimum it to or other location. ah the curved bowed ends no same vertical plane i :hea oi the coil cross each other,

back and forth on a serpentine line, on liveinch centers, to form a coil of about twice the height of the finished coil represented in Fig. 2, after which I heat one of the middle horizontal members, {1917, ofthe coil and bend the lower section of the coil on the line of said member 17 upwardly against the upper section thereof or to the position indicated by dotted lines in Fig. 1, thereby producing a coil of about one-half the length of the original coil-and of proper height for use in the tank 10. In the bending of the lower half or section oil the original coil upwardly against the upper half or section thereof I deflect or incline the heated member 17 upwardly, as denoted by the dotted lines, so that' the horizontal members of said lower section may, when said section is tolded upwardly, stand on lines midway between th horizontal members of the upper section 01 said coil, the horizontal members of the twohalves of the original coil being 5 thus brought in close relation to oncanother or in the relation the horizontal members of the coils of the prior art had to one another when steel heads were used to connect them and to permit of their being brought close together. After the lower half of the original coil has been folded against the upper half thereof, to the position indi'ated by dotted lines in Fig. 1., the curved ends of the horizontal members of the coil, where they cross one another in pairs, are oppositely bowed, as shown in Fig. El, so that all ot the horizontal members of the completed coil may stand on the same vertical plane.

My invention dispenses entirely with the steel-heads of the prio' art and all the disadvantages arising from their "use. and

atl'ords an expansion-coil de.\"oid"'ot' joints amt having the requisite pipe-length withiiu the limited space such coils must occupy.

I do not lim t. my invention strictly to the formation ol" tho entire coil in one piece, since many oi the advantages oi the inven lion would be realized it the. two vertical parts of the coil were each in aseparate scarce piece and secured together at the bottom. of i the coil by a union. Preferably, however, lthe entire coil will be in one piece and formed in the manner hereinbcfore described. F What I claim as my invention and desire to secure by Letters-Patent. is: l 1. An expansion-coil comprising two sub 1 stantially corrcs 'ionding parts of piping coiled back and forth in opposite directions and on corresponding radii, the lengthwise members of: one part. being between and on the same plane with the corresponding members of the other part and said parts forming continuous passage through them from one terminal to the other of the coil; substantially set forth.

2. An expansion-coil comprising two sub stantially corresponding parts oi? piping coiled back and forth in opposite directions f and on corresponding radii, the lengthwise IHClllllrtlS of one part beingbctween and on the same plane with the correspoiitlinn,- mcmbers of the other part and said parts form t ing acontinuous passage through them from one terminal. to the other of the coil, and the curved ends of the members or said parts where they cross one another beingoppositely bowed; substantially as set forth.

3. An expansion-coil comprising two substantially corresponding parts of piping coiled hack and forth in opposite directions and on correspondingradii. the lengthwise members of one part being between and on the same plane with the corresponding memhers of the other part and said parts forming a continuous passage through them from one terminal to the other of the coil, combincd with clamping bars applied to opposite sides of the coil andeonnected together; substantially as set, forth. V

l. An expansion-coil comprising two sub stantially corresponding parts of piping coiled back and fort-h in opposite directions and on corresponding radii. the lengthwise members of one part being between and on the same plane with the corresponding members of the other part and said parts fornr ing a continuous passage through them from one terminal. to the other of the coil, and the curved .ends of the members of said parts where they cross one another being oppositely bowed, ron'ibined with clamping bars applied to opposite sides otboth end porl tions of the coil and connected together; substai'itially as sot-forth.

h 5. Anexpmision coil conmrising two suostantially corresponding side'by side parts oi piping coiled back and forth in opposite directions on parallel lines and corresponding. radii, the lengthwise parallel members of one part alining with the spaces between the lengthwise parallel members of the other l part and said parts forming} a continuous passage through. them troin one terminal to the other of the coil, both of said terminals being at the same end of the coil; substantially as set forth.

6. An expansion coil comprising two substantially corresponding side by side parts of piping coiled back and forth in opposite directions on parallel lines and corresponding radii, the lengthwise parallelmembers of one part alining with the spaces between the lengthwise parallel members of the other part and said parts forming a continuous passage through them from one terminal to the other of the coil, both of said ter'ininals being at the same end of the coil, and both parts of the coil being in one integral continuous piece of piping; substantially asset forth.

7. An expansion-coil comprising two substantially corresponding parts of piping coiled back and forth in opposite directions and on corresponding radii and all in one continuous piece, the lengthwise members of tone part being between and on the same plane with the corresponding members of the other part, and the curved ends of the members of said parts Where they cross one another being oppositely bowed; substas-r tially as set forth. f

8. An'eXpansion-coil comprising two substantially corresponding parts of piping coiled back and forth in opposite directions and on'eorresponding radii and all in one continuous piece, the lengthwise members of one part beingbctween and on the same plane with the corresponding members of the other part, and the curved ends of the members of said parts Where they cross one another being oppositely bowed, combined with clamping-bars applied to opposite sides of the coil and connected together; substantially as set forth.

Signed at New York city, in the county of New York and State of New York, this 28th day of June A. D. 1907.

RICHARD lVHITAKER.

Witnesses:

CHAS. C. GILL,

ARTHUR MARION. 

